Thank you. But one of the things I think he's doing with those is setting stuff up for future seasons. If I'm reading the hints in the scripts right, there's going to be a *lot* of stuff in... maybe season four... that will need that as background

I think he's building an argument about how country music ultimately developed from older folk songs, which come from the Troubadour tradition, which in turn can be traced back to the contact between the Christian and Muslim worlds in the crusades.